What if? 4 blockbuster trades the Cardinals almost made over the last two decades

What If: the Cardinals traded away a budding ace for a superstar third baseman?

Before Nolan Arenado, there was Jedd Gyorko, Jhonny Peralta, Matt Carpenter, and Tommy Edman, a motley crew of sorts. St. Louis struggled to find a true third baseman in the late 2010's. In order to fix that need, St. Louis traded for Nolan Arenado in 2021

In an alternate universe, that trade may not have been possible because the Cardinals had already filled their third base vacancy with a former MVP. Reports indicate that the Cardinals and Toronto Blue Jays were in talks to swap Jack Flaherty and Josh Donaldson back in the 2017-2018 offseason.

At the time, Flaherty was the team's #2 prospect and was ranked #38 in all of baseball. Alex Reyes, Dakota Hudson, and Jordan Hicks were all ascendant prospects, and the rotation was actually quite strong at the time. The team didn't need another high-end pitcher, but they did need a third baseman. Donaldson, an MVP as recently as 2015, would have filled that hole quite well.

While recent seasons prior to the 2018 season weren't as kind to Josh Donaldson, he was still one of the best third basemen in the league; he had a .277/.368/.511 slash line for his career after the 2017 season to go along with 174 home runs in just 831 games. Donaldson's bat was his calling card, but he was no slouch defensively at the hot corner.

If St. Louis would have traded Jack Flaherty before the 2018 season, they would have seen a fading Josh Donaldson at the plate for just one year due to his expiring contract. Donaldson played in only thirty-six games in the 2018 season due to various shoulder and calf injuries. In exchange, the Blue Jays would have gotten a very young, very talented, very controllable starting pitcher.

Jack Flaherty, through all of his injuries and frustrations, was a good starting pitcher during his tenure in St. Louis, particularly in 2019. If the Cardinals had traded him off before the 2018 season, we may not have been able to see Flaherty's masterful second half in 2019. I do suspect the Cardinals trade for Nolan Arenado down the road in this universe, as I don't expect they would have extended Donaldson after a miserable 2018 season. St. Louis could have even signed a veteran Mike Moustakas to fill Donaldson's absence the following offseason.

What If: St. Louis traded for a different Miami Marlins outfielder?

One of the most maligned trades in St. Louis Cardinals' history is the trade for Marcell Ozuna. The Cardinals sent a haul of prospects to Miami for the hard-hitting outfielder coming off the best season of his career. Pitchers Sandy Alcantara, Zac Gallen, Daniel Castano and outfielder Magneuris Sierra were all sent to Miami for Marcell Ozuna.

Reports from the time indicate that the Cardinals initially had a deal in place to receive Giancarlo Stanton instead of Marcell Ozuna for the exact same package. Stanton activated his no-trade clause and declined this transfer to St. Louis. The Cardinals then re-positioned themselves and landed another outfielder from Miami in Marcell Ozuna.

Ozuna's time in St. Louis was relatively brief and exceptionally underwhelming. He was coming off a season in which he hit thirty-seven home runs with a .312 batting average and 124 RBIs. His defense was also above average given his strong arm; he accumulated two Outs Above Average in the 2017 season in left field. However, Ozuna never reached those heights again in St. Louis.

In this alternate timeline, the Cardinals still receive an injury-prone outfielder, but this time, Giancarlo Stanton lives up to the hype, at least offensively. Stanton played outfield primarily for just one season in New York after his trade, but he continued to hit well, especially in 2021. Honestly, either of these trades age poorly for the Cardinals, but at least Ozuna was relatively healthy compared to Giancarlo Stanton in 2018 and 2019.

In this alternate reality, Stanton's monster contract hampers the Cardinals financially, thus limiting their abilities to trade for Paul Goldschmidt the following season and Nolan Arenado in 2021. If St. Louis had traded for Giancarlo Stanton instead of Marcell Ozuna, the late 2010s and early 2020s would have been sorrowful. Financial limitations and a lack of pitching talent would have been devastating to watch. At least Marcell Ozuna was cheap and gone after two years.

What If: the Cardinals traded a frustrated outfielder for a future Hall of Famer?

Colby Rasmus was just a prospect in the 2007 offseason. He was a good prospect, but still a prospect nonetheless. The Cardinals were intent on keeping him to roam the grass for years to come. He was a true five-tool player, and St. Louis wanted to hoard his talents.

Rasmus's debut wouldn't come until 2009, and he would eventually be a part of a trade that would land the Cardinals Edwin Jackson, a pitcher who helped the team win the 2011 World Series. Four years prior to the 2011 trade of Colby Rasmus, the Cardinals could have landed a future Hall of Famer.

In 2007, there were reports that the Cardinals dangled Colby Rasmus and Jaime Garcia for then-twenty-four-year-old outfielder Miguel Cabrera. Cabrera was playing for the Florida Marlins at the time, and he was voted into the previous four All-Star Games (2004-2007). Cabrera played primarily third base and left field in the early and mid-2000s, but a move to first base was nigh for him.

If St. Louis had traded for Cabrera before the 2008 season, the Detroit Tigers would not have seen the success they did, and the Cardinals would have had two world-class players on the corners of the infield for a very long time. Cabrera wasn't the best defensively at the hot corner, but he was one of the best right-handed hitters of all time. Having Albert Pujols and Miguel Cabrera in the middle of the lineup would have made the heart of St. Louis's lineup even more daunting.

However, a trade for Miguel Cabrera would have inhibited a trade for Matt Holliday in 2009. Colby Ramus wouldn't have been used to get Edwin Jackson, so perhaps the 2011 World Series Championship is a figment of our imagination in this world, and Jaime Garcia isn't traded to the Braves anymore for John Gant. This potential trade has perhaps the most ramifications for the most teams.